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Direct linkSlof-Op 't Landt, M. C. T.; van Furth, E. F.; Rebollo-Mesa, I.; Bartels, M.; van Beijsterveldt, C. E. M.; Slagboom, P. E.; Boomsma, D. I.; Meulenbelt, I.; Dolan, C. V. – Assessment, 2009
In most assessment instruments, distinct items are designed to measure a trait, and the sum score of these items serves as an approximation of an individual's trait score. In interpreting group differences with respect to sum scores, the instrument should measure the same underlying trait across groups (e.g., male/female, young/old). Differences…
Descriptors: Gender Differences, Measurement, Scores, Questionnaires
